My topic is the corrosion of gray in methanol. EIS measurements were conducted at open circuit potentials (Eoc) using a sinusoidal signal with the amplitude of 10 mV from
1M Hz to 0.01 Hz.In Fig. 1, the green line means the fitting result, and the fitting pramaters are show in Fig. 2. Actually I fixed the pramater of Rs cause the Z-view recognizes Rs as negative numbers.
Hello Bai Li ,
What does "corrosion of gray in methanol" mean? In other words, "gray" what? The word 'gray' is a color, and it is usually used to modify a noun, such as the word 'tin', for example.
Regards,
Tom Cuff
Hi Bai Li ,
Without knowing more about your experimental setup, it is hard to know which results are real and which are measurement artifacts. For example, you said that the measurement software was indicating that RS was negative, before you fixed its value. This behavior might have indicated that the electrochemical cell was either acting like a Voltaic source (producing a DC voltage difference), or that the electrochemical cell was rectifying your applied test AC signal, or that the electrochemical cell might be rectifying some ground-loop current at 50 or 60 Hz depending on what your powerline frequency is. You can, of course, investigate these various possibilities using a dual-channel oscilloscope and a current viewing resistor or clamp-on current probe if you have one with the proper bandwidth.
The problem is that we cannot look over your shoulder and see what you are doing.
Regards,
Tom Cuff
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